feat: Expose important library versions

[kesara]

Update /api/version to include

"other": {
    "xml2rfc": "<version>",
    "weasyprint": "<version>"
},

Fixes #3415

[kesara]

@rjsparks is this implementation going in the correct direction?

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 11 lines in your changes missing coverage. Please review.

Project coverage is 88.76%. Comparing base (b00dfd3) to head (bc27442).
Report is 3 commits behind head on main.

Files	Patch %	Lines
ietf/__init__.py	0.00%	11 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #7713      +/-   ##
==========================================
- Coverage   88.79%   88.76%   -0.03%     
==========================================
  Files         296      296              
  Lines       41319    41330      +11     
==========================================
  Hits        36688    36688              
- Misses       4631     4642      +11     

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[rjsparks]

Yes - these seems reasonable.

[rjsparks]

@kesara - do you want to continue to pursue this?

[kesara]

@kesara - do you want to continue to pursue this?

Yes. I will. Sorry, I missed your reply during meeting.